I want to know too. From [1] AP, with thanks to pfinn:

WASHINGTON (AP) - Republican and Democratic lawmakers alike are demanding to know why the Bush administration chose to release to Syria a terror suspect when several prosecutors and FBI agents had collected evidence for a possible criminal case.

The circumstances surrounding Nabil al-Marabh's release, detailed in a recent Associated Press story, are "of deep concern and appear to be a departure from an aggressive, proactive approach to the war on terrorism," Senate Finance Committee Chairman Charles Grassley, R-Iowa, wrote Tuesday in a letter to Attorney General John Ashcroft.

The Iowa Republican repeatedly cited the AP story and demanded that Ashcroft answer 19 questions about al-Marabh's case, including why the Justice Department didn't prosecute the man they had in custody for nearly two years either in a military tribunal or through a secret court proceeding that could protect intelligence information.

Grassley also asked Justice to detail what has happened to other terror suspects that appeared on the same post-Sept. 11 terrorism list as al-Marabh.